SET3M. electro-mechanical 24 programmer for heating & hot water. Installation & User Instructions

Transcription

1 SET3M electro-mechanical 24 programmer for heating & hot water Installation & User Instructions

2 Index Installation Product specification 3 Installation 4-5 Wiring 6-12 Replacement User Your programmer 16 Setting the clock 16 Programming the unit 17 Using the programmer 18 Overrides 19 Manual use 19 Contact details 20 IDEX 2

3 Installation Instructions Please ote: This product should only be installed by a qualified electrician or competent heating installer, and should be in accordance with the current edition of the IEEE wiring regulations. Product specification Specification Power supply Switch action 230 ± 15% Vac, 50/60Hz 2 x SPDT Type 1B Switch rating Max 264 Vac, 50/60Hz, 3(1) A Setting accuracy ± 5 minutes Timing accuracy ± 1 min/month Enclosure rating IP30 Max. ambient temperature 45 C Specification Dimensions, mm (W, H, D) 158 x 98 x 58 Design standard E Control Pollution Situation Degree 2 Rated Impulse Voltage 2.5kV Ball Pressure Test 75 C 3

4 Installation 1. Fix the wallplate to the wall or flush mounted box as required. The connections are at the top and the vertical centre line of the unit, at the position shown on the diagram below C/L (in line with terminal ) Outline of programmer C/L Leave sufficient space for screwdriver access Terminal block Wall or plasterbox fixing Installation Leave at least 25mm below product Rear entry cable access Cable aperture knockouts 2. Surface cables can only enter from below the unit. If mounted on a flush mounted box, cables can enter from the rear through the aperture in the wallplate. 3. For mains voltage applications a link must be fitted between terminals L, 2 and Whilst the unit does not require an Earth connection, a terminal is provided on the wallplate for Earth continuity purposes. 4

5 5. Referring to the wiring diagrams on page 6-12, connect the unit as shown. 6. The unit is supplied ready for use in systems having PUMPED primaries. Should the unit be required for use in a system having GRAVITY primaries, fit the small plastic shorting link (which can be found taped below the left hand fixing screw hole of the wallplate) over the two pins on the rear of the plug-in module. These pins can be found in the recess near to the bottom edge of the plug-in module. 7. Ensure all dust and debris are cleared from the area. 8. Locate the module on the latches at the bottom of the wallplate and hinge upwards to fully engage the unit connectors into the wallplate. Tighten the two fi xing screws to secure the unit to the wallplate. 9. Before setting the programme, check the unit and circuit. Switch O the mains supply and press both WATER and HEATIG rocker switches to the COSTAT position - both red LED s should now be illuminated. Adjust any remote thermostat to check the services operate correctly. Installation 10. Then press both WATER and HEATIG rocker switches to the OFF position and check that both services do not operate. 11. Finally, press both WATER and HEATIG rocker switches to TIMED position prior to programming the unit. 5

6 Wiring Diagrams The following pages contain typical wiring diagrams for various types of systems. ote: Whilst every attempt has been made to ensure the accuracy of this information it is recommended that the specific information relating to the ancillary controls is obtained from the manufacturers concerned. SET3M E LS A TE SET2E, 3E, 3M &FP975 ( /01) Wiring For mains voltage applications a link must be fitted between terminals L, 2 and 5. 6

7 SET3M Gravity Typical gravity DHW pumped HTG Terminals D.H.W on-com-off HTG / on-com-off L Mains Supply L 3 amp fuse Room Stat Boiler Pump Other Danfoss Randall products suitable for use with above circuit:- RMT room thermostat Wiring - Gravity systems 7

8 SET3M Pumped Typical fully pumped system with spring return zone valve in HTG Terminals D.H.W on-com-off HTG / on-com-off L Mains Supply L 3 amp fuse Room Stat Wiring - pumped systems Cylinder Stat Boiler and Pump S.R.Z.V in HTG Other Danfoss Randall products suitable for use with above circuit:- AT cylinder thermostat; RMT room thermostat; HP22 or HP28 motorised zone valve with spring return actuator and SPST auxiliary switch 8

9 Typical gravity DHW pumped HTG with spring return zone valve in DHW Terminals D.H.W on-com-off HTG / on-com-off L Mains Supply L 3 amp fuse Room Stat Cylinder Stat S.R.Z.V in DHW Boiler Other Danfoss Randall products suitable for use with above circuit:- AT cylinder thermostat; RMT room thermostat; HP28C motorised zone valve with spring return actuator and SPDT auxiliary switch Pump Wiring - pumped systems 9

10 Typical fully pumped system with 3-port midposition valve Terminals D.H.W on-com-off HTG / on-com-off L Mains Supply L 3 amp fuse Room Stat Wiring - pumped systems Cylinder Stat Boiler and Pump 3-port mid-position valve Other Danfoss Randall products suitable for use with above circuit:- AT cylinder thermostat; RMT room thermostat; HS3 3-port mid-position valve with spring return actuator 10

11 Typical fully pumped system with spring return zone valve in each service Terminals D.H.W on-com-off HTG / on-com-off L Mains Supply L 3 amp fuse Room Stat Cylinder Stat S.R.Z.V in DHW Boiler and Pump S.R.Z.V in HTG Other Danfoss Randall products suitable for use with above circuit:- AT cylinder thermostat; RMT room thermostat; 2 x HP22 or HP28 motorised zone valve with spring return actuator and SPST auxiliary switch Wiring - pumped systems 11

12 Typical fully pumped system with fully motorised zone valve in each service Terminals D.H.W on-com-off HTG / on-com-off L Mains Supply L 3 amp fuse Room Stat Wiring - pumped systems Cylinder Stat F.M.Z.V in DHW Boiler and Pump Other Danfoss Randall products suitable for use with above circuit:- AT cylinder thermostat; RMT room thermostat F.M.Z.V in HTG 12

13 Replacement Please see overleaf for a table containing replacement wiring information. Some time controls are connected in different ways depending upon the type of system and/or the controls which are fitted. Consult the column headed OTE: The conversion applies only if... to determine how the SET3M programmer s GRAVITY or PUMPED link should be set. If there is any doubt about the way in which the existing programmer is connected, please contact our Technical Services Department before proceeding with replacement. ote: The SET3M is a direct plug-in replacement for any existing programmers using the British Gas Standard Wallplate. This includes the Horstmann 425 Tiara and Diadem electro-mechanical and 525 & 527 electronic programmers. Replacement 13

14 Danfoss Randall SET3M (PUMPED) MAIS WATER HEATIG L O COM OFF O COM OFF OTE: This conversion only applies if... L A B C D Danfoss Randall 922/972 L Glowworm Mastermind L Pumped/Gravity link is set to pumped Horstmann 423 Amethyst 7 & 10 2, Horstmann 424 GEM 2,3 1, Terminals 5,8 & 10 are linked Horstmann Leucite 423 & Terminals 5 & 7 are linked Honeywell ST669 L Landis & Gyr RWB2 L Potterton Mini-Minder L Pumped/Gravity link is set to pumped Potterton EP2000, EP3000 L A B C D Randall , Danfoss Randall Sangamo Form & 414 4, Sangamo S409/1,- 1,3 L ,4 14

15 Sangamo S409/3 3, Satchwell Libra & DHP Satchwell ET 1401 & ET Smith Ind Centroller Smith Ind Centroller 1000 L Pumped/Gravity link is set to Pumped Switchmaster 800 & 805 L Switchmaster 900 & 9000 L Pumped/Gravity link is set to Pumped A B C Venner CHC/W2 (with stat),- 2,4 L A/S - - A/-S,- 3A- /S,3 Venner CHC/W2 (air stat linked),- 2,4 L Venner Ventrolnol 80M & 80PM (with air stat) Venner Ventrolnol 80M & 80PM (air stat linked),3 L 2-1 A/S - 4,3 L Used in a system having independent control of hot water A/-S,5 15

16 User Instructions Your programmer The SET3M programmer allows you to switch your hot water and heating on and off at times that suit you. Your Programmer & Setting the Clock Four tappets on the timing dial let you decide when you want your hot water and heating to come on and go off each day. The programmer provides 2 O times and 2 OFF times per day. Using two simple rocker switches you can control your heating and hot water separately, to suit your lifestyle. Setting the Clock Remove the dial cover Turn the dial clockwise until the correct time is lined up with the TIME setting line Day segment, covering 6.00am-6.00pm, has an aluminium finish TIME setting line Day segment ight segment, covering 6.00pm-6.00am, is coloured black ight segment! IMPORTAT: If you have a powercut you will have to reset the time - and also when the clocks change in Spring and Autumn 16

17 Programming the unit There are four TAPPETS on your timing dial, two red and two blue: the red tappets are the O switches the blue tappets are the OFF switches Tappets Tappets 1 If you have not already done so, remove the dial cover 2 Hold the black & silver knob with one hand and move the red tappet marked A clockwise to the time you want your HEATIG/HOT WATER to switch on in the morning. B. you may find the tappets quite stiff, so you may have to push them quite firmly to move them. Programming the unit 3 Hold the black knob with one hand and move the blue tappet marked B to the time you want your HEATIG/ HOT WATER to switch off in the morning. 4 You can set your other two tappets in the same way to set your HEATIG/HOT WATER for the afternoon or evening.! DO OT switch the programmer on and off with the mains switch as this will stop the clock/timer and affect the timed programme. 17

18 Using the Programmer The 2 rocker switches are used to select how the SET3M controls your hot water and heating. The heating and hot water can be operated together or independently of each other (i.e. during the summer when only hot water is required). Using the programmer WATER switch OFF - the Hot Water is manually switched OFF and will stay off until you change the position of the switch Timed - the Hot Water will come on and go off at the times you have programmed Constant - the Hot Water will come on manually and stay on constantly until you change the position of the switch A red light adjacent to the WATER switch is lit whenever the Water is switched on. HEATIG switch OFF - the Heating is manually switched OFF and will stay off until you change the position of the switch Timed - the Heating will come on and go off at the times you have programmed Constant- the Heating will come on manually and stay on constantly until you change the position of the switch A red light adjacent to the HEATIG switch is lit whenever the Heating is switched on. 18

19 Overrides Sometimes you may need to change the way you use your heating or hot water temporarily, i.e. due to unusually cold weather. The SET3M has one convenient override which can be selected without affecting the set programme. The RED/BLUE wheel on the lefthand corner of the unit is an OVERRIDE SWITCH. Override wheel When it shows RED the clock is O When it shows BLUE the clock is OFF Manual Use If you do not wish to use the timer facility, you can switch your heating and hot water on or off manually by using the OVERRIDE wheel without having to change the settings on the timer itself. Overrides To use, turn the override wheel anti-clockwise until the thumbwheel displays the setting you require. The override will automatically cancel at the next pre-set time change. 19

20 Still having problems? Call your local heating engineer: ame: Tel: Visit our website: our technical department: Call our technical department ( Mon-Thurs, Fri) For a large print version of these instructions please contact the Marketing Services Department on Part o Issue 03 05/05 Danfoss Randall Ltd Ampthill Road Bedford MK42 9ER Tel: Fax: